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69 lines
2 KiB
Elixir
69 lines
2 KiB
Elixir
defmodule PowMultiFactor.Phoenix.ControllerCallbacks do
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@moduledoc """
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Controller callback logic for multi-factor authentication.
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### 2FA code not submitted
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Triggers on `Pow.Phoenix.SessionController.create/2`.
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When a user with 2FA enabled attempts to sign in without submitting their
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TOTP token, the session will be cleared, and the user redirected back to
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`Pow.Phoenix.Routes.session_path/1`.
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### User updates account
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Triggers on `Pow.Phoenix.RegistrationController.update/2`
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When a user changes their account settings, they are required to confirm a
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current 2FA token.
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See `PowMultiFactor.Ecto.Schema` for more.
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"""
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use Pow.Extension.Phoenix.ControllerCallbacks.Base
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alias Pow.Plug
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alias PowMultiFactor.Plug, as: PowMultiFactorPlug
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def before_respond(Pow.Phoenix.SessionController, :create, {:ok, conn}, config) do
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return_path = routes(conn).session_path(conn, :new)
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clear_unauthorized(conn, config, {:ok, conn}, return_path)
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end
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def before_respond(Pow.Phoenix.RegistrationController, :update, {:ok, user, conn}, config) do
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return_path = routes(conn).registration_path(conn, :edit)
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halt_unauthorized(conn, config, {:ok, user, conn}, return_path)
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end
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defp clear_unauthorized(conn, config, success_response, return_path) do
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case PowMultiFactorPlug.mfa_authorized?(conn, config) do
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false -> clear_auth(conn) |> go_back(return_path)
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true -> success_response
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end
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end
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defp halt_unauthorized(conn, config, success_response, return_path) do
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case PowMultiFactorPlug.mfa_authorized?(conn, config) do
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false -> go_back(conn, return_path)
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true -> success_response
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end
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end
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def clear_auth(conn) do
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{:ok, conn} = Plug.clear_authenticated_user(conn)
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conn
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end
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defp go_back(conn, return_path) do
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error = extension_messages(conn).invalid_multi_factor(conn)
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conn =
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conn
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|> Phoenix.Controller.put_flash(:error, error)
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|> Phoenix.Controller.redirect(to: return_path)
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{:halt, conn}
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end
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end
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